LPN Pharmacology Practice Test

Correct Answer: B

Rationale: The correct answer is to instruct the client to monitor their heart rate daily when taking atenolol. Atenolol can lead to bradycardia, a slow heart rate. By monitoring heart rate daily, the client can promptly identify any significant changes and seek medical attention if necessary. This proactive approach enables early detection of potential adverse effects of atenolol, contributing to the client's safety and well-being. Choices A, C, and D are incorrect because taking atenolol at bedtime, increasing potassium-rich foods intake, or avoiding dairy products are not specific instructions related to the potential side effects of atenolol.

Correct Answer: C

Rationale: Activated partial thromboplastin time (aPTT) is the most appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works on the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps assess its anticoagulant effect. Therapeutic levels of aPTT for clients on heparin therapy are typically 1.5 to 2.5 times the control value. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, which acts on the extrinsic pathway of the coagulation cascade. Complete blood count (CBC) is not specific for monitoring the effectiveness of heparin therapy.

Correct Answer: A

Rationale: A WBC count of 3,000/mm3 indicates leukopenia, a serious side effect of carbamazepine. Leukopenia can increase the risk of infections due to decreased white blood cell count, which is important to report to the provider for further evaluation and management. Platelet count within normal range (choice B), hemoglobin level within normal range (choice C), and serum potassium level within normal range (choice D) are not directly associated with carbamazepine use and do not require immediate reporting as they do not indicate a serious adverse effect.

Correct Answer: D

Rationale: The correct answer is D: Persistent cough. Enalapril, an ACE inhibitor, is known to commonly cause a persistent cough as an adverse effect due to its effect on bradykinin levels. Clients should be instructed to monitor for a persistent cough and report it promptly to their healthcare provider for further evaluation and possible medication adjustment. Choices A, B, and C are incorrect as they are not commonly associated with enalapril use and are not typical adverse effects of ACE inhibitors.

Correct Answer: C

Rationale: In a client taking levothyroxine for thyroid hormone replacement, decreased TSH levels indicate that the medication is effective. TSH levels decrease as the thyroid hormone levels are adequately replaced by levothyroxine, signaling a positive response to treatment. Choices A, B, and D are incorrect because weight gain, increased heart rate, and elevated blood pressure are not expected findings indicating the effectiveness of levothyroxine therapy. Weight gain may suggest inadequate dosing, while increased heart rate and elevated blood pressure could indicate over-replacement or side effects of the medication.